Home / 28,872.16-43,313.52-8,881.28

Finding the Fourth Proportional to 28,872.16, 43,313.52 and 8,881.28

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Solution

The fourth proportional to 28,872.16, 43,313.52 and 8,881.28 is: 13,323.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.16 : 43,313.52 = 8,881.28 : x
  2. Step 2: Convert to fraction form
    28,872.16/43,313.52 = 8,881.28/x
  3. Step 3: Cross multiply
    28,872.16x = 43,313.52 × 8,881.28
  4. Step 4: Simplify right side
    28,872.16x = 384,679,498.91
  5. Step 5: Solve for x
    x = 384,679,498.91/28,872.16
  6. Step 6: Final answer
    x = 13,323.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.